Tungsten carbide
Brass or copper
Diamond
Stainless steel
A. Tungsten carbide
Increases continuously
Decreases continuously
Decreases, becomes stable and then increases.
Increases, becomes stable and then decreases.
Two
Four
Five
Seven
Hardness of the material being ground
Speed of wheel and work
Condition of grinding machine
All of these
Of maximum diameter 15 mm
In 15 mm thick plates
Having cross-sectional area of 15 mm²
None of these
Minimum at the beginning of the cut and maximum at the end of the cut
Maximum at the beginning of the cut and minimum at the end of the cut
Uniform throughout the cut
None of these
Decreasing the rake angle
Increasing the depth of cut
Decreasing the cutting speed
Increasing the cutting speed
350°C
500°C
900°C
1100°C
High metal removal rate
Dry machining
Use of soft cutting tool
Surface finish
Friction zone
Work-tool contact zone
Shear zone
None of these
Improve the accuracy of location
Reduce the tendency to over-index
Improve upon the acceleration and deceleration characteristics
Reduce the cycle time
The work is reciprocated as the wheel feeds to produce cylinders longer than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders equal to or shorter than the width of wheel face
The work is reciprocated as the wheel feeds to produce cylinders shorter than the width of wheel face
The work rotates in a fixed position as the wheel feeds to produce cylinders longer than the width of wheel face
Feed rate, depth of cut, cutting speed
Depth of cut, cutting speed, feed rate
Cutting speed, feed rate, depth of cut
Feed rate, cutting speed, depth of cut
Porosity
Undercut
Under fill
Crack
Distortion
Warping
Porous weld
Poor fusion
Mismatch
Under fill
Crack
Porosity
Equal to
Less than
More than
None of these
1 in 10
1 in 15
1 in 20
1 in 30
Circular interpolation in counter clockwise direction and incremental dimension
Circular interpolation in counter clockwise direction and absolute dimension
Circular interpolation in clockwise direction and incremental dimension
Circular interpolation in clockwise direction and absolute dimension
Holds and locates a workpiece and guides and controls one or more cutting tools
Holds and locates a workpiece during an inspection or for a manufacturing operation
Is used to check the accuracy of workpiece
All of the above
Four direct speeds
Four indirect speeds
Four direct and four indirect speeds
Eight indirect speeds
Nose part, front relief face and side relief face of the cutting tool
Face of the cutting tool at a short distance from the cutting edge
Cutting edge only
Front face only
Distortion
Warping
Porous weld
Poor fusion
2 to 3 times lower
2 to 3 times higher
5 to 8 times higher
8 to 20 times higher
Cutting forces and power consumption
Tool life
Type of chips and shear angle
All of these
Direction of the tool axis
Direction of tool travel
Perpendicular to the direction of the tool axis
Central plane of the workpiece
Cold shut
Swell
Sand wash
Scab
Fusion
Reverse polarity
Forward welding
Direct polarity
Diamond is very hard and wear resistant
It occupies very little space
It helps in assembly with tolerance on centre distance
It has a long life
Amount of material to be removed
Hardness of material being ground
Finish desired
All of these
Perform burnishing operation
Remove minimum metal
Remove maximum metal
Remove no metal